Home / 217,876.23-300,697.92-122,388.17

Finding the Fourth Proportional to 217,876.23, 300,697.92 and 122,388.17

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Solution

The fourth proportional to 217,876.23, 300,697.92 and 122,388.17 is: 168,911.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,876.23 : 300,697.92 = 122,388.17 : x
  2. Step 2: Convert to fraction form
    217,876.23/300,697.92 = 122,388.17/x
  3. Step 3: Cross multiply
    217,876.23x = 300,697.92 × 122,388.17
  4. Step 4: Simplify right side
    217,876.23x = 36,801,866,648.12
  5. Step 5: Solve for x
    x = 36,801,866,648.12/217,876.23
  6. Step 6: Final answer
    x = 168,911.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.